/*
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * Copyright.java
 * Copyright (C) 2007 University of Waikato, Hamilton, New Zealand
 */

package weka.core;

import java.util.Calendar;
import java.util.Properties;

/**
 * A class for providing centralized Copyright information.
 * 
 * @author fracpete (fracpete at waikato dot ac dot nz)
 * @version $Revision: 1.2 $
 */
public class Copyright {

	/** the copyright file */
	public final static String PROPERTY_FILE = "weka/core/Copyright.props";

	/** Contains the properties */
	protected static Properties PROPERTIES;

	static {
		PROPERTIES = new Properties();

		try {
			// PROPERTIES.load(ClassLoader.getSystemResourceAsStream(PROPERTY_FILE));
			PROPERTIES.load((new Copyright()).getClass().getClassLoader()
					.getResourceAsStream(PROPERTY_FILE));
		} catch (Exception e) {
			System.err
					.println("Could not read configuration file for the copyright "
							+ "information - using default.");
		}
	}

	/**
	 * returns the start year of the copyright
	 * 
	 * @return the start year
	 */
	public static String getFromYear() {
		return PROPERTIES.getProperty("FromYear", "1999");
	}

	/**
	 * returns the end year of the copyright (i.e., current year)
	 * 
	 * @return the end/current year
	 */
	public static String getToYear() {
		return PROPERTIES.getProperty("ToYear", ""
				+ Calendar.getInstance().get(Calendar.YEAR));
	}

	/**
	 * returns the entity owning the copyright
	 * 
	 * @return the owner
	 */
	public static String getOwner() {
		return PROPERTIES.getProperty("Owner", "The University of Waikato");
	}

	/**
	 * returns the address of the owner
	 * 
	 * @return the address
	 */
	public static String getAddress() {
		return PROPERTIES.getProperty("Address", "Hamilton, New Zealand");
	}

	/**
	 * returns the URL of the owner
	 * 
	 * @return the URL
	 */
	public static String getURL() {
		return PROPERTIES
				.getProperty("URL", "http://www.cs.waikato.ac.nz/~ml/");
	}

	/**
	 * Only for testing
	 * 
	 * @param args
	 *            ignored
	 */
	public static void main(String[] args) {
		System.out.println(PROPERTIES);
	}
}
